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气瓶用大口径无缝钢管

标准 尺寸公差 力学性能 化学成分

标准:

用途: 用于制造气瓶用热轧大口径无缝钢管 主要生产钢管牌号: 4130X

尺寸公差:

用于低中压锅炉(工作压力一般不大于5.88Mpa,工作温度在450℃以下)的受热面管子;用

于高压锅炉(工作压力一般在9.8Mpa以上,工作温度在450℃~650℃之间)的受热面管子、省煤器、过热器、再热器、石化工业用管等。

主要生产钢管牌号:

10、20、20G、20MnG、25MnG、15CrMoG、12Cr2MoG、12Cr1MoVG、12Cr2MoWVTiB、10Cr9Mo1VNb、SA210A1、SA210C、SA213 T11、SA213 T12、SA213 T22、SA213 T23、SA213 T91、SA213 T92、ST45.8/Ⅲ、15Mo3、13CrMo44、10CrMo910等

尺寸公差:

钢管种类 外径(D) 壁厚(S)
冷拔管 钢管外径(mm) 允许偏差(mm) 钢管壁厚(mm) 允许偏差(mm)
>30~50 ±0.3 >3~20 ±10%

力学性能:

标准 牌号 抗拉强度(MPa) 屈服强度(MPa) 伸长率(%) 硬度
GB3087 10 335~475 ≥195 ≥24 /
20 410~550 ≥245 ≥20 /
GB5310 20G 410~550 ≥245 ≥24 /
20MnG ≥415 ≥240 ≥22 /
25MnG ≥485 ≥275 ≥20 /
15CrMoG 440~640 ≥235 ≥21 /
12Cr2MoG 450~600 ≥280 ≥20 /
12Cr1MoVG 470~640 ≥255 ≥21 /
12Cr2MoWVTiB 540~735 ≥345 ≥18 /
10Cr9Mo1VNb ≥585 ≥415 ≥20 /
ASME SA210 SA210A-1 ≥415 ≥255 ≥30 ≤143HB
SA210C ≥485 ≥275 ≥30 ≤179HB
ASME SA213 SA213 T11 ≥415 ≥205 ≥30 ≤163HB
SA213 T12 ≥415 ≥220 ≥30 ≤163HB
SA213 T22 ≥415 ≥205 ≥30 ≤163HB
SA213 T23 ≥510 ≥400 ≥20 ≤220HB
SA213 T91 ≥585 ≥415 ≥20 ≤250HB
SA213 T92 ≥620 ≥440 ≥20 ≤250HB
DIN17175 ST45.8/Ⅲ 410~530 ≥255 ≥21 /
15Mo3 450~600 ≥270 ≥22 /
13CrMo44 440~590 ≥290 ≥22 /
10CrMo910 480~630 ≥280 ≥20

化学成分:

标准
牌号
化学成分(%)
C Si Mn P S Cr Mo Cu Ni V Al W Ti Nb N
GB3087
10 0.07~0.13 0.17~0.37 0.38~0.65 ≤0.030 ≤0.030 0.3~0.65 / ≤0.25 ≤0.30 / /        
20 0.17~0.23 0.17~0.37 0.38~0.65 ≤0.030 ≤0.030 0.3~0.65 / ≤0.25 ≤0.30 / /        
GB5310
20G 0.17~0.24 0.17~0.37 0.35~0.65 ≤0.030 ≤0.030 ≤0.25 ≤0.15 ≤0.20 ≤0.25 ≤0.08          
20MnG 0.17~0.24 0.17~0.37 0.70~1.00 ≤0.030 ≤0.030 ≤0.25 ≤0.15 ≤0.20 ≤0.25 ≤0.08          
25MnG 0.18~0.24 0.17~0.37 0.80~1.10 ≤0.030 ≤0.030 ≤0.25 ≤0.15 ≤0.20 ≤0.25 ≤0.08          
15CrMo 0.12~0.18 0.17~0.37 0.40~0.70 ≤0.030 ≤0.030 0.80~1.10 0.40~0.55 ≤0.20 ≤0.30            
12Cr2MoG 0.08~0.15 ≤0.50 0.40~0.70 ≤0.030 ≤0.030 2.00~2.50 0.90~1.20 ≤0.20 ≤0.30            
12Cr1MoV 0.08~0.15 0.17~0.37 0.40~0.70 ≤0.030 ≤0.030 0.90~1.20 0.25~0.35 ≤0.20 ≤0.30 0.15~0.30          
12Cr2MoWVTiB
0.08~0.15 0.45~0.75 0.45~0.65 ≤0.030 ≤0.030 1.60~2.10 0.50~0.65 ≤0.20 ≤0.30 0.28~0.42   0.30~0.55 0.08~0.15 B 0.002~0.008  
10Cr9Mo1VNb 0.08~0.12 0.20~0.50 0.30~0.60 ≤0.020 ≤0.010 8.00~9.50 0.85~1.05 ≤0.20 ≤0.40 0.18~0.25 ≤0.015     0.06~0.10 0.03~0.07
ASME SA210
SA210A-1 0.13~0.19 ≥0.1 0.45~0.65 ≤0.030 ≤0.030                    
SA210C 0.18~0.24 ≥0.1 0.80~1.10 ≤0.030 ≤0.030                    
ASME SA213
SA213 T11 0.05~0.15 0.50~1.0 0.30~0.60 ≤0.030 ≤0.030 1.00~1.50 0.50~1.00                
SA213 T12 0.05~0.15 ≤0.50 0.30~0.61 ≤0.030 ≤0.030 0.80~1.25 0.44~0.65                
SA213 T22 0.05~0.15 ≤0.50 0.30~0.60 ≤0.030 ≤0.010 1.90~2.60 0.87~1.13                
SA213 T23 0.04~0.10 ≤0.50 0.10~0.60 ≤0.030 ≤0.030 1.90~2.60 0.05~0.30       ≤0.030 1.45~1.75 B 0.0005~0.006 0.02~0.08 ≤0.040
SA213 T91 0.08~0.12 0.20~0.50 0.30~0.60 ≤0.020 ≤0.010 8.00~9.50 0.85~1.05   ≤0.40 0.18~0.25 ≤0.015     0.06~0.10 0.03~0.07
SA213 T92 0.07~0.13 ≤0.50 0.30~0.60 ≤0.020 ≤0.010 8.50~9.50 0.30~0.60   ≤0.40 0.15~0.25 ≤0.015 1.50~2.00 B 0.001~0.006 0.04~0.09 0.03~0.07
DIN 17175
ST45.8/ ≤0.21 0.10~0.35 0.40~1.20 ≤0.040 ≤0.040                    
15Mo3 0.12~0.20 0.10~0.35 0.40~0.80 ≤0.035 ≤0.035   0.25~0.35                
13CrMo44 0.10~0.18 0.10~0.35 0.40~0.70 ≤0.035 ≤0.035 0.70~1.10 0.45~0.65                
10CrMo910 0.08~0.15 ≤0.50 0.30~0.70 ≤0.025 ≤0.020 2.00~2.50 0.90~1.10 ≤0.30 ≤0.30   ≤0.015        



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